Observed 9:15 AM CDT at K1H2

Mason, IL weather

Sunny and 57°14°, jacket by 9 PM.

Mostly agree

Now 57°14°

Sunny

Wind: 3 mph5 km/h; From the east. Up to 5 mph8 km/h through 9 PM
Dew point: 48°9°; Comfortable
UV index: 1Low; Moderate 11 AM–3 PM · peak 4
Pressure: 30.43 inHg1030 hPa; Steady over the last 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

About the same as this time yesterday (57°14° then, 57°14° now)

Good hours for

Above 60°16° today by 11 AM
High 73°23° today at 3 PM
Below 60°16° tonight after 8 PM
Low 45°7° tomorrow at 7 AM

This morningUp to 64°18° by 11 AM · Partly cloudy
This afternoonUp to 73°23° by 3 PM · Partly cloudy
TonightDown to 46°8° by 5 AM · Partly cloudy
Tomorrow morningUp to 66°19° by 11 AM · Mostly cloudy
Tomorrow afternoonUp to 76°24° by 4 PM · Mostly cloudy
Tomorrow nightDown to 49°9° by 4 AM · Mostly cloudy
Monday morningUp to 53°12° by 8 AM · Cloudy

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Sat 9a	Partly sunny	53°12° (likely 51°11° to 53°12°)	53°12°	0%	3 mph5 km/h from ESE, gusts 4 mph6 km/h	77%	21%	1
Sat 10a	Partly sunny	59°15° (likely 58°14° to 60°16°)	59°15°	0%	5 mph8 km/h from ESE, gusts 9 mph14 km/h	67%	36%	2
Sat 11a	Partly sunny	64°18° (likely 63°17° to 66°19°)	64°18°	0%	5 mph8 km/h from ESE, gusts 9 mph15 km/h	54%	70%	3
Sat 12p	Partly sunny	68°20° (likely 66°19° to 69°21°)	68°20°	0%	5 mph8 km/h from ESE, gusts 9 mph14 km/h	45%	43%	4
Sat 1p	Partly sunny	71°22° (likely 69°21° to 71°22°)	71°22°	0%	5 mph8 km/h from ESE, gusts 8 mph13 km/h	41%	58%	4
Sat 2p	Partly sunny	72°22° (likely 70°21° to 73°23°)	72°22°	0%	5 mph8 km/h from ESE, gusts 8 mph13 km/h	38%	45%	4
Sat 3p	Partly sunny	73°23° (likely 71°22° to 73°23°)	73°23°	0%	5 mph8 km/h from ESE, gusts 9 mph14 km/h	35%	56%	2
Sat 4p	Cloudy	73°23° (likely 70°21° to 74°23°)	73°23°	0%	5 mph8 km/h from ESE, gusts 9 mph15 km/h	35%	66%	1
Sat 5p	Mostly sunny	71°22° (likely 68°20° to 72°22°)	71°22°	0%	3 mph5 km/h from ESE, gusts 9 mph14 km/h	38%	26%	0
Sat 6p	Partly cloudy	68°20° (likely 63°17° to 68°20°)	68°20°	0%	2 mph3 km/h from E, gusts 7 mph12 km/h	43%	49%	0
Sat 7p	Cloudy	63°17° (likely 59°15° to 63°17°)	63°17°	0%	1 mph2 km/h from E, gusts 8 mph13 km/h	54%	63%	0
Sat 8p	Mostly clear	57°14° (likely 56°13° to 59°15°)	57°14°	0%	1 mph2 km/h from E, gusts 8 mph13 km/h	69%	46%	0
Sat 9p	Mostly clear	55°13° (likely 53°12° to 57°14°)	55°13°	0%	1 mph2 km/h from ESE, gusts 8 mph13 km/h	72%	20%	0
Sat 10p	Clear	53°12° (likely 51°11° to 55°13°)	53°12°	0%	1 mph2 km/h from ESE, gusts 7 mph11 km/h	77%	0%	0
Sat 11p	Clear	52°11° (likely 50°10° to 54°12°)	52°11°	0%	1 mph2 km/h from ESE, gusts 7 mph11 km/h	80%	0%	0
Sun 12a	Clear	51°11° (likely 49°9° to 53°12°)	51°11°	0%	1 mph2 km/h from ESE, gusts 7 mph11 km/h	83%	0%	0
Sun 1a	Clear	50°10° (likely 47°8° to 52°11°)	50°10°	0%	1 mph2 km/h from ESE, gusts 6 mph10 km/h	86%	1%	0
Sun 2a	Cloudy	49°9° (likely 46°8° to 51°11°)	49°9°	0%	1 mph2 km/h from ESE, gusts 6 mph9 km/h	86%	59%	0
Sun 3a	Mostly clear	48°9° (likely 45°7° to 50°10°)	48°9°	0%	0 mph0 km/h, gusts 5 mph8 km/h	89%	44%	0
Sun 4a	Clear	47°8° (likely 45°7° to 49°9°)	47°8°	0%	0 mph0 km/h, gusts 4 mph7 km/h	93%	12%	0
Sun 5a	Mostly clear	46°8° (likely 44°7° to 48°9°)	46°8°	0%	0 mph0 km/h, gusts 4 mph7 km/h	96%	33%	0
Sun 6a	Mostly clear	46°8° (likely 43°6° to 47°8°)	46°8°	0%	0 mph0 km/h, gusts 3 mph5 km/h	93%	64%	0
Sun 7a	Mostly sunny	45°7° (likely 43°6° to 48°9°)	45°7°	0%	0 mph0 km/h, gusts 3 mph5 km/h	96%	71%	0
Sun 8a	Mostly sunny	47°8° (likely 44°7° to 50°10°)	47°8°	0%	0 mph0 km/h, gusts 4 mph7 km/h	93%	69%	0
Sun 9a	Mostly sunny	53°12° (likely 51°11° to 55°13°)	53°12°	0%	1 mph2 km/h from SE, gusts 4 mph7 km/h	86%	68%	1
Sun 10a	Mostly sunny	61°16° (likely 59°15° to 62°17°)	61°16°	0%	1 mph2 km/h from SE, gusts 7 mph11 km/h	65%	64%	2
Sun 11a	Mostly sunny	66°19° (likely 64°18° to 68°20°)	66°19°	0%	1 mph2 km/h from SSE, gusts 6 mph9 km/h	52%	41%	3
Sun 12p	Mostly sunny	70°21° (likely 68°20° to 73°23°)	70°21°	0%	0 mph0 km/h, gusts 5 mph8 km/h	46%	62%	4
Sun 1p	Mostly sunny	73°23° (likely 71°22° to 75°24°)	73°23°	0%	0 mph0 km/h, gusts 4 mph7 km/h	40%	66%	4
Sun 2p	Cloudy	75°24° (likely 72°22° to 76°24°)	75°24°	0%	0 mph0 km/h, gusts 3 mph6 km/h	36%	67%	4
Sun 3p	Cloudy	75°24° (likely 73°23° to 77°25°)	75°24°	0%	0 mph0 km/h, gusts 4 mph6 km/h	36%	80%	3
Sun 4p	Cloudy	76°24° (likely 72°22° to 77°25°)	76°24°	0%	0 mph0 km/h, gusts 4 mph6 km/h	33%	80%	2
Sun 5p	Cloudy	74°23° (likely 70°21° to 76°24°)	74°23°	0%	0 mph0 km/h, gusts 4 mph6 km/h	38%	79%	1
Sun 6p	Cloudy	71°22° (likely 65°18° to 71°22°)	71°22°	0%	0 mph0 km/h, gusts 4 mph6 km/h	42%	80%	0
Sun 7p	Cloudy	66°19° (likely 62°17° to 66°19°)	66°19°	0%	0 mph0 km/h, gusts 4 mph7 km/h	54%	78%	0
Sun 8p	Partly cloudy	60°16° (likely 60°16° to 62°17°)	60°16°	0%	0 mph0 km/h, gusts 5 mph7 km/h	67%	48%	0
Sun 9p	Cloudy	58°14° (likely 58°14° to 60°16°)	58°14°	0%	0 mph0 km/h, gusts 4 mph7 km/h	72%	80%	0
Sun 10p	Cloudy	56°13° (likely 56°13° to 59°15°)	56°13°	0%	0 mph0 km/h, gusts 5 mph7 km/h	77%	75%	0
Sun 11p	Cloudy	55°13° (likely 55°13° to 56°13°)	55°13°	0%	0 mph0 km/h, gusts 5 mph8 km/h	80%	62%	0
Mon 12a	Mostly cloudy	53°12° (likely 53°12° to 55°13°)	53°12°	0%	0 mph0 km/h, gusts 4 mph7 km/h	83%	63%	0
Mon 1a	Cloudy	52°11° (likely 52°11° to 55°13°)	52°11°	0%	0 mph0 km/h, gusts 6 mph10 km/h	86%	78%	0
Mon 2a	Cloudy	51°11° (likely 51°11° to 54°12°)	51°11°	0%	0 mph0 km/h, gusts 6 mph9 km/h	89%	93%	0
Mon 3a	Cloudy	50°10° (likely 50°10° to 54°12°)	50°10°	0%	0 mph0 km/h, gusts 6 mph9 km/h	89%	93%	0
Mon 4a	Cloudy	49°9° (likely 49°9° to 53°12°)	49°9°	0%	0 mph0 km/h, gusts 6 mph10 km/h	93%	85%	0
Mon 5a	Cloudy	49°9° (likely 49°9° to 52°11°)	49°9°	0%	0 mph0 km/h, gusts 5 mph8 km/h	89%	91%	0
Mon 6a	Cloudy	49°9° (likely 48°9° to 52°11°)	49°9°	0%	0 mph0 km/h, gusts 6 mph9 km/h	89%	85%	0
Mon 7a	Cloudy	48°9° (likely 47°8° to 53°12°)	48°9°	0%	0 mph0 km/h, gusts 5 mph8 km/h	93%	93%	0
Mon 8a	Mostly cloudy	53°12° (likely 47°8° to 58°14°)	53°12°	0%	0 mph0 km/h, gusts 4 mph7 km/h	80%	84%	0

Days ahead

Tap a day for its hours and the official wording.

Today, Oct 24. Partly sunny. High 73°23°, low 45°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 64°18°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 73°23°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 57°14°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 46°8°
  Dry
Official NWS forecast
Today: Mostly sunny, with a high near 73. East southeast wind around 5 mph.
Tonight: Mostly clear, with a low around 45. East southeast wind around 2 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
71°22°–74°23°
Low, likely
42°6°–46°8°
Wind
8 mph13 km/h, gusts 14 mph22 km/h
UV peak
4
Tomorrow, Oct 25. Cloudy. High 76°24°, low 48°9°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 47°8°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 76°24°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 60°16°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 49°9°
  Dry
Official NWS forecast
Day: Sunny, with a high near 76. South southeast wind around 1 mph.
Night: Mostly cloudy, with a low around 48. Wind around 0 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
73°23°–77°25°
Low, likely
43°6°–48°9°
Wind
5 mph8 km/h, gusts 10 mph17 km/h
UV peak
4
Monday, Oct 26. Cloudy. High 76°24°, low 48°9°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 53°12°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 75°24°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 62°16°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 52°11°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 76. Southwest wind around 2 mph.
Night: Partly cloudy, with a low around 48. Wind around 0 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
73°23°–77°25°
Low, likely
48°9°–51°11°
Wind
7 mph11 km/h, gusts 13 mph21 km/h
UV peak
4
Tuesday, Oct 27. Cloudy. High 74°23°, low 50°10°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 53°12°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 73°23°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 62°16°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 53°12°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 74. Southeast wind 0 to 3 mph.
Night: Mostly cloudy, with a low around 50.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
71°22°–74°23°
Low, likely
48°9°–54°12°
Wind
7 mph12 km/h, gusts 20 mph32 km/h
UV peak
3
Wednesday, Oct 28. Cloudy. High 77°25°, low 52°11°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 55°13°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 76°25°
  Dry
3. Evening
  6 PM–midnight
  Clear, 62°17°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 54°12°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 77.
Night: Mostly clear, with a low around 52.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
73°23°–77°25°
Low, likely
50°10°–55°13°
Wind
10 mph15 km/h, gusts 18 mph29 km/h
UV peak
4
Thursday, Oct 29. Mostly sunny. High 77°25°, low 49°9°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 56°13°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 78°26°
  Dry
3. Evening
  6 PM–midnight
  Clear, 64°18°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 54°12°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 77.
Night: Partly cloudy, with a low around 49.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
76°24°–80°27°
Low, likely
49°9°–55°13°
Wind
11 mph17 km/h, gusts 22 mph36 km/h
UV peak
4
Friday, Oct 30. Cloudy. High 75°24°, low 51°11°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Mostly sunny, 57°14°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 78°25°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 65°18°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 57°14°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 75.
Night: Mostly cloudy, with a low around 51.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
74°23°–81°27°
Low, likely
50°10°–57°14°
Wind
9 mph15 km/h, gusts 17 mph27 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 75°24°, low 59°15°. Rain 0.09 in2.3 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 61°16°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 76°24°
  20% chance
3. Evening
  6 PM–midnight
  Cloudy, 68°20°
  30% chance
4. Overnight
  midnight–6 AM
  Cloudy, 64°18°
  50% chance · 0.04 in1.1 mm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
70°21°–80°27°
Low, likely
56°13°–61°16°
Wind
12 mph19 km/h, gusts 26 mph41 km/h
UV peak
3
Sunday, Nov 1. Showers. High 69°21°, low 62°17°. Rain 0.65 in17 mm, 50% chance. Forecasts agree.
1. Morning
  6 AM–noon
  Drizzle, 65°18°
  50% chance · 0.11 in2.9 mm
2. Afternoon
  noon–6 PM
  Rain, 68°20°
  40% chance · 0.24 in6 mm
3. Evening
  6 PM–midnight
  Rain, 64°18°
  40% chance · 0.24 in6.2 mm
4. Overnight
  midnight–6 AM
  Drizzle, 59°15°
  40% chance · 0.19 in4.9 mm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
68°20°–70°21°
Low, likely
58°14°–65°18°
Wind
23 mph37 km/h, gusts 41 mph65 km/h
Monday, Nov 2. Showers. High 65°18°, low 56°13°. Rain 0.5 in13 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 59°15°
  30% chance · 0.15 in3.8 mm
2. Afternoon
  noon–6 PM
  Rain, 62°17°
  30% chance · 0.24 in6.1 mm
3. Evening
  6 PM–midnight
  Rain, 62°17°
  30% chance · 0.2 in5 mm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
59°15°–72°22°
Low, likely
47°8°–65°18°
Wind
22 mph36 km/h, gusts 37 mph60 km/h
UV peak
1

10 days15 days30 days

The outlook

Today
Dry, high 73°, low 45°.
Tomorrow
Dry, high 76°, low 48°, warming up.
Monday
Dry, high 76°, low 48°.
Rest of week
Highs 65–77°; chance of precipitation on Sunday, Monday.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (ILX) (opens in a new tab)

What changed since yesterday

No meaningful changes from yesterday’s forecast.

Radar

Radar data: NOAA MRMS, rendered by forecast.blue

Radar loads when scrolled into view

Full-screen radar

Rivers

NOAA river gauges within 25 mi

Little Wabash River near Effingham

11 mi

Below flood stage

Level: 10.4 ft
Flow: under 1 cfs

Reading from Sat 7:30 AM · NWS gauge page

Kaskaskia River near Cowden

22 mi

Below flood stage

Level: 2.3 ft
Flow: 62 cfs

Reading from Sat 8 AM · NWS gauge page

Kaskaskia River at Vandalia

25 mi

Below flood stage

Level: 2.8 ft
Flow: 94 cfs

Reading from Sat 8 AM · NWS gauge page

Sun & moon

Sun

Daylight: 10 h 50 min; Losing 2 min 25 s a day; shortest Dec 21, 1 h 24 min less
Golden hour: 5:26–6:20 PM; Morning 6:56–7:50 AM
Blue hour: 6:20–6:30 PM; Morning 6:46–6:56 AM; first light 6:46 AM

Stars tonight? Fair

Mostly clear 9 PM–2 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

97% lit · growing

Today: sets 5:28 AM · rises 5:00 PM
Full moon: Oct 25
New moon: Nov 9

Looking west from Mason. The highest point on the skyline is about 2,200 ft, 34 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

Mason, IL weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Little Wabash River near Effingham

Kaskaskia River near Cowden

Kaskaskia River at Vandalia

Sun & moon

Sun

Stars tonight? Fair

Moon